灰黄霉素EP杂质B(去氯灰黄霉素) 货号:G027003 英文名:Griseofulvin EP Impurity B (Dechloro Griseofulvin) 同义词:(1'S,6'R)-2',4,6-trimethoxy-6'-methylspiro[benzofuran-2(3H),1'-[2]cyclohexene]-3,4'-dione CAS号:3680-32-8 分子式:C17H18O6 分子量:318.33 询价订购